fix(runtime): unstick wander loop + chop radius + explore.far skill

Follow-up to the iteration-1 fixes. Live smoke on play.xmatic.team
revealed the bot was spawning into a tree-less plain (no log within
32 blocks of spawn), looping wander→gather→no_target→wander
forever inside a 16-block box.

- runtime/actions.js: chopNearestTree search radius 32 → 64 (still no
  trees on this spawn, but a normal biome will be served well by it).
  wander now has a blind-walk fallback when pathfinder times out
  (look+forward+jump for 3 s) so the bot at least unsticks from leaves
  or pillars. Pathfinder timeout reduced 30 s → 15 s.
- runtime/skills/explore-far.js: new explore.far skill — walks ~48
  blocks in a quadrant (NE/SE/SW/NW, rotating per call) so successive
  hints actually circle the spawn instead of bouncing in place. Blind
  walk fallback included.
- runtime/reflex.js: when the scheduler is told to wander twice in a
  row by gather.* recover hints, it now dispatches explore.far instead
  so the bot actually leaves the patch it's stuck in. Resets the
  consecutiveWanderHints counter on any success.
- runtime/reflex.js (sleep): no longer dispatches when the bot has
  neither a bed in inventory NOR a known shelter/base location —
  saved one dispatch + 5-min cooldown per restart at night.
- runtime/reflex.js (eat): inventory check + lastEatAt always updated
  fix the eat-spam loop observed live (every tick fired "eat" → "no
  food in inventory" → again).
- runtime/skills/chop-logs.js: recognise "no log within ..." as
  no_target so the recover hint switches the bot to wander/explore.

npm test 124/124.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

runtime/reflex.test.js

@@ -66,12 +66,16 @@ test("defend wins over curriculum when hostile in melee", () => {
 	assert.match(dispatches[0].label, /attack zombie/);
 });
 
-test("eat wins over curriculum when food low and bot has food", () => {
+test("eat wins over curriculum when food low and bot has food in inventory", () => {
 	const { ctx, dispatches } = makeCtx({
 		snapshot: {
 			connected: true,
 			health: 20,
 			food: 10,
+			// 2026-05-26: eat reflex now requires actual food in inventory
+			// to avoid the eat-spam loop that fired every tick on empty
+			// inventory.
+			inventory: { bread: 1 },
 			curriculum: { plan: { skillId: "gather.logs" } },
 		},
 	});
@@ -80,6 +84,21 @@ test("eat wins over curriculum when food low and bot has food", () => {
 	assert.equal(dispatches[0].label, "eat");
 });
 
+test("eat reflex does NOT dispatch when no food in inventory (no spam)", () => {
+	const { ctx, dispatches } = makeCtx({
+		snapshot: {
+			connected: true,
+			health: 20,
+			food: 10,
+			inventory: { dirt: 1 },
+			curriculum: { plan: { skillId: "gather.logs" } },
+		},
+	});
+	const out = runTick(ctx);
+	// Falls through to curriculum.
+	assert.equal(out.reflex, "curriculum");
+});
+
 test("curriculum dispatches suggested skill by id", () => {
 	const { ctx, dispatches } = makeCtx({
 		snapshot: {